1 files changed, 293 insertions, 0 deletions
diff --git a/clang/lib/AST/Stmt.cpp b/clang/lib/AST/Stmt.cpp
new file mode 100644
index 00000000000..572280bc054
--- /dev/null
+++ b/clang/lib/AST/Stmt.cpp
@@ -0,0 +1,293 @@
+//===--- Stmt.cpp - Statement AST Node Implementation ---------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements the Stmt class and statement subclasses.
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang/AST/Stmt.h"
+#include "clang/AST/ExprCXX.h"
+#include "clang/AST/StmtVisitor.h"
+#include "clang/Basic/IdentifierTable.h"
+using namespace clang;
+
+static struct StmtClassNameTable {
+  const char *Name;
+  unsigned Counter;
+  unsigned Size;
+} StmtClassInfo[Stmt::lastExprConstant+1];
+
+static StmtClassNameTable &getStmtInfoTableEntry(Stmt::StmtClass E) {
+  static bool Initialized = false;
+  if (Initialized)
+    return StmtClassInfo[E];
+
+  // Intialize the table on the first use.
+  Initialized = true;
+#define STMT(N, CLASS, PARENT) \
+  StmtClassInfo[N].Name = #CLASS; \
+  StmtClassInfo[N].Size = sizeof(CLASS);
+#include "clang/AST/StmtNodes.def"
+  
+  return StmtClassInfo[E];
+}
+
+const char *Stmt::getStmtClassName() const {
+  return getStmtInfoTableEntry(sClass).Name;
+}
+
+void Stmt::PrintStats() {
+  // Ensure the table is primed.
+  getStmtInfoTableEntry(Stmt::NullStmtClass);
+  
+  unsigned sum = 0;
+  fprintf(stderr, "*** Stmt/Expr Stats:\n");
+  for (int i = 0; i != Stmt::lastExprConstant+1; i++) {
+    if (StmtClassInfo[i].Name == 0) continue;
+    sum += StmtClassInfo[i].Counter;
+  }
+  fprintf(stderr, "  %d stmts/exprs total.\n", sum);
+  sum = 0;
+  for (int i = 0; i != Stmt::lastExprConstant+1; i++) {
+    if (StmtClassInfo[i].Name == 0) continue;
+    fprintf(stderr, "    %d %s, %d each (%d bytes)\n", 
+            StmtClassInfo[i].Counter, StmtClassInfo[i].Name,
+            StmtClassInfo[i].Size,
+            StmtClassInfo[i].Counter*StmtClassInfo[i].Size);
+    sum += StmtClassInfo[i].Counter*StmtClassInfo[i].Size;
+  }
+  fprintf(stderr, "Total bytes = %d\n", sum);
+}
+
+void Stmt::addStmtClass(StmtClass s) {
+  ++getStmtInfoTableEntry(s).Counter;
+}
+
+static bool StatSwitch = false;
+
+bool Stmt::CollectingStats(bool enable) {
+  if (enable) StatSwitch = true;
+  return StatSwitch;
+}
+
+
+const char *LabelStmt::getName() const {
+  return getID()->getName();
+}
+
+// This is defined here to avoid polluting Stmt.h with importing Expr.h
+SourceRange ReturnStmt::getSourceRange() const { 
+  if (RetExpr)
+    return SourceRange(RetLoc, RetExpr->getLocEnd());
+  else
+    return SourceRange(RetLoc);
+}
+
+bool Stmt::hasImplicitControlFlow() const {
+  switch (sClass) {
+    default:
+      return false;
+      
+    case CallExprClass:
+    case ConditionalOperatorClass:
+    case ChooseExprClass:
+    case StmtExprClass:
+    case DeclStmtClass:
+      return true;    
+      
+    case Stmt::BinaryOperatorClass: {
+      const BinaryOperator* B = cast<BinaryOperator>(this);
+      if (B->isLogicalOp() || B->getOpcode() == BinaryOperator::Comma)
+        return true;
+      else
+        return false;
+    }
+  }
+}
+
+//===----------------------------------------------------------------------===//
+// Constructors
+//===----------------------------------------------------------------------===//
+
+AsmStmt::AsmStmt(SourceLocation asmloc, bool issimple, bool isvolatile,
+                 unsigned numoutputs, unsigned numinputs,
+                 std::string *names, StringLiteral **constraints,
+                 Expr **exprs, StringLiteral *asmstr, unsigned numclobbers,
+                 StringLiteral **clobbers, SourceLocation rparenloc)
+  : Stmt(AsmStmtClass), AsmLoc(asmloc), RParenLoc(rparenloc), AsmStr(asmstr)
+  , IsSimple(issimple), IsVolatile(isvolatile)
+  , NumOutputs(numoutputs), NumInputs(numinputs) {
+  for (unsigned i = 0, e = numinputs + numoutputs; i != e; i++) {
+    Names.push_back(names[i]);
+    Exprs.push_back(exprs[i]);
+    Constraints.push_back(constraints[i]);    
+  }
+  
+  for (unsigned i = 0; i != numclobbers; i++)
+    Clobbers.push_back(clobbers[i]);
+}
+
+ObjCForCollectionStmt::ObjCForCollectionStmt(Stmt *Elem, Expr *Collect,
+                                             Stmt *Body,  SourceLocation FCL,
+                                             SourceLocation RPL) 
+: Stmt(ObjCForCollectionStmtClass) {
+  SubExprs[ELEM] = Elem;
+  SubExprs[COLLECTION] = reinterpret_cast<Stmt*>(Collect);
+  SubExprs[BODY] = Body;
+  ForLoc = FCL;
+  RParenLoc = RPL;
+}
+
+
+ObjCAtCatchStmt::ObjCAtCatchStmt(SourceLocation atCatchLoc, 
+                                 SourceLocation rparenloc, 
+                                 Stmt *catchVarStmtDecl, Stmt *atCatchStmt, 
+                                 Stmt *atCatchList)
+: Stmt(ObjCAtCatchStmtClass) {
+  SubExprs[SELECTOR] = catchVarStmtDecl;
+  SubExprs[BODY] = atCatchStmt;
+  if (!atCatchList)
+    SubExprs[NEXT_CATCH] = NULL;
+  else {
+    ObjCAtCatchStmt *AtCatchList = static_cast<ObjCAtCatchStmt*>(atCatchList);
+
+    while (ObjCAtCatchStmt* NextCatch = AtCatchList->getNextCatchStmt())      
+      AtCatchList = NextCatch;
+    
+    AtCatchList->SubExprs[NEXT_CATCH] = this;
+  }
+  AtCatchLoc = atCatchLoc;
+  RParenLoc = rparenloc;
+}
+
+
+//===----------------------------------------------------------------------===//
+//  Child Iterators for iterating over subexpressions/substatements
+//===----------------------------------------------------------------------===//
+
+// DeclStmt
+Stmt::child_iterator DeclStmt::child_begin() { return getDecl(); }
+Stmt::child_iterator DeclStmt::child_end() { return child_iterator(); }
+
+// NullStmt
+Stmt::child_iterator NullStmt::child_begin() { return child_iterator(); }
+Stmt::child_iterator NullStmt::child_end() { return child_iterator(); }
+
+// CompoundStmt
+Stmt::child_iterator CompoundStmt::child_begin() { return &Body[0]; }
+Stmt::child_iterator CompoundStmt::child_end() { return &Body[0]+Body.size(); }
+
+// CaseStmt
+Stmt::child_iterator CaseStmt::child_begin() { return &SubExprs[0]; }
+Stmt::child_iterator CaseStmt::child_end() { return &SubExprs[END_EXPR]; }
+
+// DefaultStmt
+Stmt::child_iterator DefaultStmt::child_begin() { return &SubStmt; }
+Stmt::child_iterator DefaultStmt::child_end() { return &SubStmt+1; }
+
+// LabelStmt
+Stmt::child_iterator LabelStmt::child_begin() { return &SubStmt; }
+Stmt::child_iterator LabelStmt::child_end() { return &SubStmt+1; }
+
+// IfStmt
+Stmt::child_iterator IfStmt::child_begin() { return &SubExprs[0]; }
+Stmt::child_iterator IfStmt::child_end() { return &SubExprs[0]+END_EXPR; }
+
+// SwitchStmt
+Stmt::child_iterator SwitchStmt::child_begin() { return &SubExprs[0]; }
+Stmt::child_iterator SwitchStmt::child_end() { return &SubExprs[0]+END_EXPR; }
+
+// WhileStmt
+Stmt::child_iterator WhileStmt::child_begin() { return &SubExprs[0]; }
+Stmt::child_iterator WhileStmt::child_end() { return &SubExprs[0]+END_EXPR; }
+
+// DoStmt
+Stmt::child_iterator DoStmt::child_begin() { return &SubExprs[0]; }
+Stmt::child_iterator DoStmt::child_end() { return &SubExprs[0]+END_EXPR; }
+
+// ForStmt
+Stmt::child_iterator ForStmt::child_begin() { return &SubExprs[0]; }
+Stmt::child_iterator ForStmt::child_end() { return &SubExprs[0]+END_EXPR; }
+
+// ObjCForCollectionStmt
+Stmt::child_iterator ObjCForCollectionStmt::child_begin() { 
+  return &SubExprs[0]; 
+}
+Stmt::child_iterator ObjCForCollectionStmt::child_end() { 
+  return &SubExprs[0]+END_EXPR; 
+}
+
+// GotoStmt
+Stmt::child_iterator GotoStmt::child_begin() { return child_iterator(); }
+Stmt::child_iterator GotoStmt::child_end() { return child_iterator(); }
+
+// IndirectGotoStmt
+Stmt::child_iterator IndirectGotoStmt::child_begin() { 
+  return reinterpret_cast<Stmt**>(&Target); 
+}
+
+Stmt::child_iterator IndirectGotoStmt::child_end() { return ++child_begin(); }
+
+// ContinueStmt
+Stmt::child_iterator ContinueStmt::child_begin() { return child_iterator(); }
+Stmt::child_iterator ContinueStmt::child_end() { return child_iterator(); }
+
+// BreakStmt
+Stmt::child_iterator BreakStmt::child_begin() { return child_iterator(); }
+Stmt::child_iterator BreakStmt::child_end() { return child_iterator(); }
+
+// ReturnStmt
+Stmt::child_iterator ReturnStmt::child_begin() {
+  if (RetExpr) return reinterpret_cast<Stmt**>(&RetExpr);
+  else return child_iterator();
+}
+
+Stmt::child_iterator ReturnStmt::child_end() { 
+  if (RetExpr) return reinterpret_cast<Stmt**>(&RetExpr)+1;
+  else return child_iterator();
+}
+
+// AsmStmt
+Stmt::child_iterator AsmStmt::child_begin() { return child_iterator(); }
+Stmt::child_iterator AsmStmt::child_end() { return child_iterator(); }
+
+// ObjCAtCatchStmt
+Stmt::child_iterator ObjCAtCatchStmt::child_begin() { return &SubExprs[0]; }
+Stmt::child_iterator ObjCAtCatchStmt::child_end() { 
+  return &SubExprs[0]+END_EXPR; 
+}
+
+// ObjCAtFinallyStmt
+Stmt::child_iterator ObjCAtFinallyStmt::child_begin() { return &AtFinallyStmt; }
+Stmt::child_iterator ObjCAtFinallyStmt::child_end() { return &AtFinallyStmt+1; }
+
+// ObjCAtTryStmt
+Stmt::child_iterator ObjCAtTryStmt::child_begin() { return &SubStmts[0]; }
+Stmt::child_iterator ObjCAtTryStmt::child_end()   { 
+  return &SubStmts[0]+END_EXPR; 
+}
+
+// ObjCAtThrowStmt
+Stmt::child_iterator ObjCAtThrowStmt::child_begin() {
+  return &Throw;
+}
+
+Stmt::child_iterator ObjCAtThrowStmt::child_end() {
+  return &Throw+1;
+}
+
+// ObjCAtSynchronizedStmt
+Stmt::child_iterator ObjCAtSynchronizedStmt::child_begin() {
+  return &SubStmts[0];
+}
+
+Stmt::child_iterator ObjCAtSynchronizedStmt::child_end() {
+  return &SubStmts[0]+END_EXPR;
+}
+